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प्रश्न
Name the following:
An acid whose formula is ‘H2CO3’.
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उत्तर
Carbonic acid
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
State whether the following statement is true or false:
The symbol of element cobalt is CO.
If the symbol for Cobalt, Co, were written as CO, what would be wrong with it?
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
Write the formula of the compound formed – given symbols and combining power or capacity (valency) of the following element in the compound.
Ca2+ NO31-
State the type of element for the following:
Antimony
Write the radical of the following valency:
Sulphate
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Aluminate
State why the molecular formula of zinc carbonate is ZnCO3 .
What does the symbol '(aq.)' present in a chemical equation, mean?
